551 
Eoscorpius, 298 
Hpeira, 409; EH. angulata, 315, 409; #. 
basilica, 350, 351; web of, 351; Z£. 
bifurcata, 359; EH. caudata, 359; #. 
cornuta, 409 ; EH. cucurbitina, 872, 409 ; 
E. diademata, 335, 340, 348, 345, 359, 
366, 380, 409 ; anatomy, 332; cocoon, 
358; silk, 360; spinnerets, 325; JZ. 
labyrinthea, 350; E. madagascarensis, 
360 ; E. mauritia, 349: E. pyramidata, 
409; B. quadrata, 366, 409; 2. triar- 
unea, 350; E. umbratica, 409 
Epeiridae, 376, 377, 406 
HKpeirinae, 408 
Ephippium, 48 
Epiblemum, 420 
Epicarida, 729 ; sex in, 105 
Epicaridian, larva of Epicarida, 130 
Epicoxite, of Hurypterus, 287 
Epidanus, 449 
Epigyne, 319, 333, 378 
Epipharynx, 459 
Epipodite, 9, 10 
Episininae, 402 
Episinus truncatus, 403 
Epistome, of Eurypterida, 291 ; of Pseudo- 
scorpions, 431, 436 ; of Phalangidea, 443 
Erber, 355, 356 
Eremobates, 429 
Eremobatinae, 429 
Hresidae, 398 
Hresus cinnaberinus, 398 
Eriauchenus, 411 
Erichthoidina, larva of Stomatopod, 143 
Ericthus, larva of Stomatopod, 143 
Erigone, 405 
Erigoninae, 404 
Eriophyes, 465; HE. ribis, 455, 465; L. 
tiliae, 465 
Eriophyidae, 464 
Eriphia, 191; E. spinifrons, 191 
Erlanger, von, on development and posi- 
tion of Tardigrada, 483 
Ero, 411; E. furcata, 366, 4115; cocoon, 
358; HE. tuberciulata, 412 
Eryonidae, 758 ; habitat, 204 
Eryonidea, 157 
Erythraeinae, 473 
Estheria, 21, 22, 23, 36; EH. gubernator 
and H. macgillivrayi, habitat, 33; £. 
tetraceros, 36 
Eucarida, 114, 744 f. 
Euchueta norwegica, 58 
Eueopepoda, 57 f. 
Eucopia australis, 119 
Eucopiidae, 113, 114, 778 
Eudendrium, Pyenogons on, 520 
Eudorella, 121 
Eukoenenia, 423; E. augusta,’423; £. 
florenciae, 423; H. grassii, 423 
Eulimnadia, 36; E. mauritani, 36; £. 
texana, 36 
Euloma, 230 
Eumalacostraca, 772 f. 
Eupagurinae, 7S0 
Eupagurus, 180; E..bernhardus, com- 
mensalism, 172; distribution, 199; 2. 
excavatus, parasitic castration of, 101; 
E. longicarpus, metamorphosis, 179 ; £. 
prideauxii, commensalism, 172; 2£. 
pubescens, distribution, 199 
Kuphausia pellucida, 145, 146 
Euphausiacea, 744 
Euphausiidae, 113, 114, 144; 
history, 145; eyes, 150 
Lupodes, 471 
Euproéps, 278 
Eurycare, 232, 247 
Eurycercus, 53; alimentary canal, 42; 2. 
lamellatus, habitat, 207 
Hurycide, 505, 535; HE. hispida, 506, 
507, 533 
Eurycididae, 533 
Eurydium, 485 
Luryopis, 404 
Eurypelma, 889; E. hentzii, 361, 370 
Euryplax, 195 
Eurypterida, 258, 278, 283 f. 
Eurypteridae, 290 f. 
Eurypterus, 283 f., 290, 291, 292; £. 
Jischeri, 284, 286, 289 
Eurytemora, 59; EH. affinis, habitat, 206 
Eusarcus, 283, 291 
Euscorpiinae, 50S 
Euscorpius, 298, 308 ; E. carpathicus, 299 
Kusimonia, 429 
Euterpe acutifrons, 61, 61; distribution, 
203 
Euthycoelus, 3S9 
Evadne, 54; young, 47 
Excretory system (including Renal organs), 
in Crustacea, 12; in Arachnids, 257 ; in 
Limulus, 270; in Tardigrada, 481 ; in 
Pentastomida, 491 
Exner, on mosaic vision, 148 
Exopodite, 9, 10 ; of Trilobites, 237 
Hyes, compound, of Crustacea, 146, 147 ; 
physiology of, 148; of deep-sea Crus- 
tacea, 149; connexion with phosphor- 
escent organs, 151; regeneration of, 6 ; 
of Trilobites, 227 f., 228; of Limulus, 
271 ; of Eurypterida, 285 ; of Scorpions, 
301; of Pedipalpi, 309; of Spiders, 
315, 334 ; of Solifugae, 426 ; of Pseudo- 
scorpions, 431; of Phalangidea, 442 ; 
of Acarina, 458 ; of Pyenogons, 517 
larval 
Fabre, on habits of Spiders, 298 f.; of 
Tarantula, 361 f. ; on Wasp v. Spider, 
368 f. 
Facet, of Trilobites, 235 
Facial suture, 225 f., 232 
Falanga, 424 
False articulations, 444 
